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    Time-Dependent Current-Density-Functional Theory of Spin-Charge Separation and Spin Drag in One-Dimensional Ultracold Fermi Gases

    Xianlong, Gao
    Polini, Marco
    Rainis, Diego
    Tosi, M. P.
    Vignale, Giovanni, 1957-
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    [PDF] TimeDependentCurrentDensityFunctionalTheory.pdf (478.4Kb)
    Date
    2008
    Format
    Article
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    Abstract
    Motivated by the large interest in the nonequilibrium dynamics of low-dimensional quantum many-body systems, we present a fully microscopic theoretical and numerical study of the charge and spin dynamics in a one-dimensional ultracold Fermi gas following a quench. Our approach, which is based on time-dependent current-density-functional theory, is applicable well beyond the linear-response regime and produces both spin-charge separation and spin-drag-induced broadening of the spin packets.
    URI
    http://hdl.handle.net/10355/7679
    Citation
    Phys. Rev. Lett. 101, 206402 (2008) [4 pages]
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